package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("image.jpg");
        FileOutputStream fos=new FileOutputStream("image-cp.jpg");
        BufferedInputStream bis=new BufferedInputStream(fis);
        BufferedOutputStream bos=new BufferedOutputStream(fos);

        int d;
        long start=System.currentTimeMillis();
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        long end=System.currentTimeMillis();
        System.out.println("复制完成，耗时："+(end-start)+"毫秒");
        bos.close();
        bis.close();
    }
}
